Sold my Omni 6+ and have a few items left for sale : Pair of INRAD 2.8 filters (# 754, 755) $ 199 shipped Priority Mail, Ten Tec 1.8 (#288) filter $ 65 shipped, Ten Tec 705 desk mic (nice !) $ 64 shipped, INRAD Omni 6+ RX audio mod (never installed) $ 10 shipped. Check Ten Tec and INRAD web pages for specifics. Brian K3USC, Erie, PA 814-866-2585 or email.